As someone correctly understood - I consider myself an expert in 2 languages, and good enough in a bunch of others to various degrees (mostly because of not usi

As someone correctly understood - I consider myself an expert in 2 languages, and good enough in a bunch of others to various degrees (mostly because of not using for a long while), and confident enough that should I need to I can pick up where i left off with those. I also make a point to learn a new language with a mini project to go with it every couple of years. And yes, to use your examples, I am very aware of SQL variants between mySql, Postgres, Oracle and MSSql, I work with React daily and well, the same with Python, and I handle all of what is called devops these days on my own projects. I've been around the block a few times. But all this I don't consider special. These are tools I use daily across 3 major projects (another story). And I am absolutely sure there are many many like me and those with a much higher mastery of those tools than me. I am still learning every day and when that stops, I will too. Doing full stack does not have to mean you sacrifice proficiency. I actually love the context switching and sometimes will flip between front and backend just as a head-cleaner exercise. As a side note: we're currently renovating our house and I love watching the builders work. They seem to be full stack in their abilities as well. Electrics, plumbing, structural work, plastering, decorating, building our kitchen, opening walls. It is amazing to watch them work. I asked the guy the same thing - where did you learn to do all this? how can you handle so much? His answer was the same as mine now - He's been doing it for many many years, and over those years those skills across all disciplines get stronger and fine tuned. This is just how it is I guess.